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通轴式轴向柱塞泵和马达构成的无级变速器主要用于行走机械。而许多行走机械对于起动、停车、换向的快速性都有严格要求,并且许多场合不能用较精密的电液伺服系统代替手动伺服系统,如履带式军用车辆。因此通轴式手动伺服系统的变量时间特性引起了人们的广泛兴趣。目前液压泵斜盘位移、系统压力、转速都有比较理想的测试手段,唯独手动伺服变量泵输入阶跃信号的
Passive axial piston pump and the composition of the continuously variable transmission is mainly used for mobile machinery. Many walking machines have strict requirements on the quickness of starting, stopping and changing directions, and many occasions can not replace manual servo systems with more sophisticated electro-hydraulic servo systems, such as crawler-type military vehicles. Therefore, the variable-time characteristics of the shaft-type manual servo system have aroused widespread interest. Currently hydraulic pump swashplate displacement, system pressure, speed has an ideal test method, except that the manual servo variable pump input step signal